unix/Sys.ps: Return Process Status (Unix 'ps') Information

In sfsmisc: Utilities from 'Seminar fuer Statistik' ETH Zurich

Return Process Status (Unix 'ps') Information

Description

These functions return process id and status information, typically about the running R process.

Usage

Sys.ps(process= Sys.getpid(),
       fields = c("pid", "pcpu", "time", "vsz", "comm"),
       usefile = length(fields) > 10,
       ps.cmd  = Sys.ps.cmd(),
       verbose = getOption("verbose"),
       warn.multi = verbose || any(fields != "ALL"))

Sys.sizes(process = Sys.getpid(), ps.cmd = Sys.ps.cmd())

Arguments

Details

Use man ps on your respective Unix system, to see what fields are supported exactly. Unix dialects do differ here, and, SunOS-Solaris even has more than one ps command...

Value

Note, that Sys.sizes() currently returns two integers which are “common” to Solaris and Linux.

Author(s)

Martin Maechler

See Also

Sys.info, Sys.getpid, proc.time.

Examples

(.pid <- Sys.getpid()) ## process ID of current process
Sys.sizes(.pid)

## The default process statistics about the running R process
try( Sys.ps() )